The biennial Solar Decathlon is coming up next month with teams preparing their solar-powered homes for West Potomac Park in Washington, D.C. The competition will showcase modern, energy-efficient homes from 19 teams from September 23 – October 2, 2011. We’ve taken a look at the architectural models for each home and continue our coverage this year with a look at the renderings. There’s some great work here. Any predictions? Which team will take it all?